Audio, Powerpoint, Handwritting Sync
For educational use, there needs to be a way to sync the audio with the handwritten notes taken on a powerpoint presentation, and have this able to be played back in OneNote. Powerpoint often provides animations and other things that can only be represented through powerpoint. So my suggestion is allowing the user that takes written notes or draws on the powerpoint as it is given or advanced, to be embedded into a OneNote page. This would be different than screen recording because hopefully it would take a lot less storage to just have audio tied to handwriting on a fully replay-able powerpoint.